
Module 10 Practice Questions
Flashcard
•
Mathematics
•
University
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is a null hypothesis (Ho)?
Back
The null hypothesis (Ho) is a statement that there is no effect or no difference, and it serves as the default or starting assumption in hypothesis testing.
2.
FLASHCARD QUESTION
Front
What is an alternative hypothesis (Ha)?
Back
The alternative hypothesis (Ha) is a statement that indicates the presence of an effect or a difference, opposing the null hypothesis.
3.
FLASHCARD QUESTION
Front
What does a p-value represent in hypothesis testing?
Back
A p-value represents the probability of obtaining test results at least as extreme as the observed results, assuming that the null hypothesis is true.
4.
FLASHCARD QUESTION
Front
What does it mean if the p-value is small (typically < 0.05)?
Back
A small p-value indicates strong evidence against the null hypothesis, leading to its rejection in favor of the alternative hypothesis.
5.
FLASHCARD QUESTION
Front
What is the significance level (alpha) in hypothesis testing?
Back
The significance level (alpha) is the threshold for determining whether to reject the null hypothesis, commonly set at 0.05.
6.
FLASHCARD QUESTION
Front
What is a Type I error?
Back
A Type I error occurs when the null hypothesis is incorrectly rejected when it is actually true.
7.
FLASHCARD QUESTION
Front
What is a Type II error?
Back
A Type II error occurs when the null hypothesis is not rejected when it is actually false.
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